Take a sheet of paper.
Fold corner up till it meets the other side.
Fold other corner up till it meets the other side.
Cut off the area at the top.
Unfold it and you now have a square piece.
Fold up all four corners so that the points meet in the middle.
It should now look like this.
Flip it over.
Work you fingers into the four corners from the fold side - work the creases to form four points.
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